Home / 512,521,312.16-768,913,013.28-149,015,668.16

Finding the Fourth Proportional to 512,521,312.16, 768,913,013.28 and 149,015,668.16

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Solution

The fourth proportional to 512,521,312.16, 768,913,013.28 and 149,015,668.16 is: 223,561,603.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,521,312.16 : 768,913,013.28 = 149,015,668.16 : x
  2. Step 2: Convert to fraction form
    512,521,312.16/768,913,013.28 = 149,015,668.16/x
  3. Step 3: Cross multiply
    512,521,312.16x = 768,913,013.28 × 149,015,668.16
  4. Step 4: Simplify right side
    512,521,312.16x = 114,580,086,430,838,144
  5. Step 5: Solve for x
    x = 114,580,086,430,838,144/512,521,312.16
  6. Step 6: Final answer
    x = 223,561,603.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.